Delete old indeces data

Elastic Stack Elasticsearch
1

Hi,
I'm trying to make some drill down to our system ELK before upgrading.
We are running ElasticSearch with 1.7 (old, I know).

I've found that on ES data directory, we have some indices that not exists by ES (not shown on /status request or /_cat/indices)

It is some Logstash data from 2017 and we don't need it any more.
I just want to make sure it is fine to delete those files without any request for ES (just rm - rf logstash-2017*).
What do you think?

Thanks

2

It should be ok. I would take a backup first.

Also, you should really upgrade. 1.7 Is super old.

3

Backup removed indices is not important at all.
I'll create volume backup before removing for overcome any problems with existing data.

And yes, I need to upgrade it...

4

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